. >> the fbi said ciancia was dropped off at lax friday morning. in his bag a smith & wesson assault rifle like this one with five extra magazines fully loaded. the fbi alleges ciancia walked up to the tsa checkpoint and fired multiple shots at point-blank range at a tsa officers. >> in these circumstances, the defendant faces either maximum penalty of life without the possibility of parole, or the potential of the imposition of the death penalty. >> according to the complaint, as he moved up the escalator, he looked back at the wounded officer, who in video appearance to move, and returned to shoot the officer again, killing him. ciancia then alleged by gunned down at least two more tsa officers. a chase through the terminal end at the food court near the boarding gates where airport police shot him four times. >> he made a conscious decision to kill multiple tsa employees. >> the fbi says the handwritten letter found in his bag erased any doubt about that. the fbi says the letter, signed by ciancia, addresses the tsa directly and says he intended